FOR DIRECT BURIALPre-insulated piping system for CENTRALIZED DISTRICT HEATING
ONE-TIME COMPENSATROR (E-MUFF)
D - Nominal diameter (mm)
d - Steel pipe outside diameter (mm)
S – Maximum axial movement (mm)
P – Spring rate (N/mm)
L – Length (mm)
|
DN |
d |
L |
a | P | S |
|
mm |
mm |
mm |
N/mm |
mm |
|
|
25 |
33,7 |
275 |
2 |
176 |
50 |
|
32 |
42,4 |
275 |
2 |
204 |
50 |
|
40 |
48,3 |
275 |
2 |
177 |
50 |
|
50 |
60,3 |
275 |
2 |
224 |
50 |
|
65 |
76,1 |
335 |
3 |
219 |
70 |
|
80 |
88,9 |
345 |
3 |
180 |
70 |
|
100 |
114,3 |
390 |
3 |
212 |
80 |
|
125 |
139,7 |
400 |
4 |
226 |
80 |
|
150 |
168,3 |
475 |
4 |
261 |
100 |
|
200 |
219,1 |
515 |
5 |
361 |
120 |
|
250 |
273,0 |
515 |
5 |
362 |
120 |
|
300 |
323,9 |
660 |
5 |
353 |
140 |
|
350 |
355,6 |
650 |
6 |
617 |
140 |
|
400 |
406,4 |
650 |
6 |
505 |
140 |
Raw materials
Carrier steel part
One-time, starting compensator (E-muff) with stainless steel bellows, steel grade 1.4541; shell and weld ends – carbon steel; nominal work pressure PN25.
During preheating of the pipeline, the one-time compensator absorbs the heat elongation.
Полиетиленова обшивка
Thermo-shrinkable polyethylene joint, complete with installation and insulation kit.